JPS6159173A - Refrigerator - Google Patents

Refrigerator

Info

Publication number
JPS6159173A
JPS6159173A JP17830584A JP17830584A JPS6159173A JP S6159173 A JPS6159173 A JP S6159173A JP 17830584 A JP17830584 A JP 17830584A JP 17830584 A JP17830584 A JP 17830584A JP S6159173 A JPS6159173 A JP S6159173A
Authority
JP
Japan
Prior art keywords
propeller fan
duct
refrigerator
freezer compartment
passage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP17830584A
Other languages
Japanese (ja)
Inventor
関根 洋治
秀夫 五十嵐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP17830584A priority Critical patent/JPS6159173A/en
Publication of JPS6159173A publication Critical patent/JPS6159173A/en
Pending legal-status Critical Current

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  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は冷M、庫に係り特に冷蔵室への冷気送風能力を
向上させるに好適な分流構造に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to refrigerators and refrigerators, and particularly to a branching structure suitable for improving the ability to blow cold air into a refrigerator compartment.

〔発明の背景〕[Background of the invention]

従来、この種の冷M、庵は第5図に示すように蒸発器に
より得られた冷気を1個のプロペラファン前方から冷凍
室と冷蔵室に分流する方法が一般的であって、その中に
プロペラフアン8前号に円錐状と思われる分流装置9が
知られている、(公開実用昭和50−902621 しかし、この技術は分流をスムーズに行なわせる効果は
察しられるが、分流後の冷気の洩れ防止や風圧を高める
ための技術的配慮が欠けている。
Conventionally, this type of cold air is generally divided into a freezer compartment and a refrigerator compartment from the front of one propeller fan, as shown in Figure 5. In the previous issue of Propeller Fan 8, a conical flow dividing device 9 is known. There is a lack of technical considerations to prevent leaks and increase wind pressure.

〔発明の目的〕[Purpose of the invention]

本発明の目的はプロペラファンの径方向に次第に断面積
の広がる分流ダクトを設けて分流ダクト先端の静圧を効
率的に高め、−万区画したことにより冷凍室への送風量
も効率的に高する分流構造を提供することにある。
The purpose of the present invention is to efficiently increase the static pressure at the tip of the diverter duct by providing a diverter duct whose cross-sectional area gradually expands in the radial direction of the propeller fan. The objective is to provide a diversion structure that

〔発明の概要〕[Summary of the invention]

プロペラファンは安価であるが、風圧が低い、送風方向
制約が困難などの欠点がある。すな紗ち第6図に示すよ
りに、通路抵抗のわずかな増大により風量が減少するほ
か主流aは回転速度の影響割合が大きくなって斜め前方
となり、マウスリング10近傍ではマウスリング10と
プロペラファン8とのギャップに向う逆流すが強く生じ
、しかもこの現象は全周面にわたって行なわれるばかり
か、径方向の離れた位置でも風速に動圧)が小でくなシ
方向性を失い逆流を助長させてしまう。
Although propeller fans are inexpensive, they have drawbacks such as low wind pressure and difficulty in controlling the direction of air flow. As shown in Fig. 6, the air volume decreases due to a slight increase in passage resistance, and the main flow a becomes diagonally forward due to the increased influence of the rotational speed, and near the mouth ring 10, the mouth ring 10 and the propeller A strong backflow toward the gap with the fan 8 occurs, and this phenomenon not only occurs over the entire circumference, but also at distant positions in the radial direction, the wind speed and dynamic pressure are small enough to lose directionality and cause the backflow. It encourages it.

本発明は本現象に着目してこれらの欠点を除去できる分
流ダクトを提供したものである。
The present invention focuses on this phenomenon and provides a diversion duct that can eliminate these drawbacks.

〔発明の実施例〕[Embodiments of the invention]

以下、本発明の一実施例を第1図および第2図により説
明する。1はプロペラファンであってN方向に回転する
。2はマウスリングプレートであって吸込側と吐出側の
呈を区画するもの、3は圧力室を形成するプレートであ
って左方に吹出口6aを設け、吹出口6aより冷凍室4
に冷気を送り出ス。5はプロペラファン1の径方向でプ
レート5上に設けた分流ダクトであって、5aは回転方
向に進んだ位置でプロペラファン1の中心にはソ向う角
度をなしてプロペラファン1に接近した前″  □、、
□、5 b ttifa151”l ) 5 aよ、−
一。
An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. 1 is a propeller fan that rotates in the N direction. 2 is a mouth ring plate which separates the suction side and the discharge side; 3 is a plate forming a pressure chamber with an air outlet 6a on the left side;
Sends out cold air. Reference numeral 5 denotes a branch duct provided on the plate 5 in the radial direction of the propeller fan 1, and 5a is a branch duct at a position advanced in the rotational direction and angled toward the center of the propeller fan 1 before approaching the propeller fan 1. ″ □,,
□、5 b ttifa151"l ) 5 a, -
one.

遮れた位置でプロペラファン2の外周にはソ接線をなし
て接近したスタート点5bを有し比後方ダクトであって
ファン近傍で渦巻状に次第にプロペラファン1からの距
離を犬にするよう形成した後方ダクトでありて、上記ダ
クト5a 、5bと前記プレート乙によって流れ方向に
次第に断面積が大きくなる独立通路を形成して冷気の一
部を冷蔵室乙のための取入ロアより通風路7a全通して
冷蔵室6へ送り出され、また、分流ダクト5以外の冷気
はプロペラファン1の残りの外周または前号より吐出さ
れた吹出口3aより冷凍室4に送り出される。
At the blocked position, the outer periphery of the propeller fan 2 has a starting point 5b approaching the propeller fan 2 in a tangential line, and is a specific rear duct formed so that the distance from the propeller fan 1 gradually increases in a spiral shape near the fan. The ducts 5a and 5b and the plate B form an independent passage whose cross-sectional area gradually increases in the flow direction, and a portion of the cold air is transferred from the intake lower for the refrigerator compartment B to the ventilation passage 7a. All the cold air is sent to the refrigerator compartment 6, and the cold air other than the branch duct 5 is sent to the freezing compartment 4 from the remaining outer periphery of the propeller fan 1 or the outlet 3a discharged from the previous part.

本実施例によれば分流ダクト5によって分流ダクト5内
の流れは従来と同じプレート6と合せて二重遮蔽される
ことによジ風圧の洩れを防ぎ、かつ、逆流現象も分流ダ
クト5外の動きより助長されることがなくなるほか分流
ダクト5の断面積が流れ方向に次第に増大しであるので
、遠心ファ〜ンに用いる渦巻ケーシングと同じようにプ
ロペラファン1からの吐出流動圧がスムーズに静圧に変
換されて取入ロアの直前の静圧が高まり、こfl、に、
よって冷蔵室へ冷気を効率的に多量送り出・すことがで
きる。
According to this embodiment, the flow inside the diversion duct 5 is double-shielded by the diversion duct 5 together with the plate 6, which is the same as the conventional one, thereby preventing the leakage of wind pressure and also preventing the backflow phenomenon from occurring outside the diversion duct 5. In addition to not being affected by movement, the cross-sectional area of the flow dividing duct 5 gradually increases in the flow direction, so that the discharge flow pressure from the propeller fan 1 smoothly and statically, similar to the spiral casing used in centrifugal fans. The static pressure immediately in front of the intake lower increases as it is converted into pressure.
Therefore, a large amount of cold air can be efficiently sent to the refrigerator compartment.

尚、分流ダクトの入口側では動圧が大きいため逆流の発
生を極めて少なくできるための効果も含まれる。一方、
冷凍室4側に関しても分流通路の流速や乱れの影響を受
けなくなるので冷蔵室6側と同様な理由で冷気を効率的
に多量送り出すことができる。また騒音に関しても逆流
や乱れが少なくなることにより低減できる。また、分流
ダクト5の効果により従来のようなファン前方に設ける
円錐状の分流装置が不要となる。
Incidentally, since the dynamic pressure is large on the inlet side of the diversion duct, this also includes the effect of extremely minimizing the occurrence of backflow. on the other hand,
Since the freezer compartment 4 side is not affected by the flow velocity or turbulence of the branch passage, a large amount of cold air can be efficiently sent out for the same reason as the refrigerator compartment 6 side. Also, noise can be reduced by reducing backflow and turbulence. Moreover, the effect of the flow dividing duct 5 eliminates the need for a conventional conical flow dividing device provided in front of the fan.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、プロペラファン1の吸込側と吐出側を
区画する径方向のマウスリングプレート2上吐出側に、
プロペラファン1に接近したスタート点を有する前方ダ
クト5aと後方ダクト5bを用いて流れ方向に通路面積
が大になる分流ダクト5を形成して、分流ダクト5を冷
蔵室用通路となして冷凍室用通路と区画し、残りのプロ
ペラファン1の周囲を冷凍室用通路となし、これら通風
路の前方に冷凍室用の吹出口6aを設けたプレート6を
配置した分流構造としたことにより冷蔵室6への流れは
冷凍室4から2重遮蔽されて洩れや逆流の発生を防止で
き、分流ダクト5内にて静圧回復をスムーズに行なうこ
とができるので冷蔵室6への冷気の送風はかシか、冷?
I富4への送風も効率的に多量得られ、騒音も低減でき
る効果のある家庭用冷蔵庫の分流構造を提供できる。
According to the present invention, on the discharge side of the mouth ring plate 2 in the radial direction that partitions the suction side and the discharge side of the propeller fan 1,
A front duct 5a and a rear duct 5b having a starting point close to the propeller fan 1 are used to form a branch duct 5 with a large passage area in the flow direction. The space around the remaining propeller fan 1 is defined as a passage for the freezer compartment, and a separate flow structure is created in which a plate 6 with an air outlet 6a for the freezer compartment is placed in front of these ventilation passages. The flow to the refrigerator compartment 6 is double-shielded from the freezer compartment 4 to prevent leakage and backflow, and the static pressure can be smoothly restored in the branch duct 5, so cold air is not blown into the refrigerator compartment 6. Shika, cold?
It is possible to provide a shunting structure for a household refrigerator that is effective in efficiently blowing a large amount of air to Ifu 4 and reducing noise.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の冷M、riLの分流構造を示す冷凍室
断面図、第2図は第1図のA−A断面図、第3図は従来
の冷蔵庫の分流構造を示す冷凍室断面図である。 1・・・プロヘラファン、2・・・マウスリングプレー
ト、3a・・・吹出口、4・・・冷凍室、5・・・分流
ダクト、6・・・冷蔵室。
Fig. 1 is a cross-sectional view of the freezer compartment showing the separation structure of cold M and riL of the present invention, Fig. 2 is a sectional view taken along the line A-A in Fig. 1, and Fig. 3 is a cross-section of the freezer compartment showing the separation structure of the conventional refrigerator. It is a diagram. DESCRIPTION OF SYMBOLS 1... Pro Hella fan, 2... Mouth ring plate, 3a... Air outlet, 4... Freezing room, 5... Diversion duct, 6... Refrigerator room.

Claims (1)

【特許請求の範囲】 1、プロペラファンを使用して冷蔵室6と冷凍室4に冷
気を分流する家庭用冷蔵庫において、マウスリングプレ
ート上吐出側に、プロペラファンに接近した分流ダクト
5を形成し、該分流ダクト5の通路断面積は流れ方向に
大になる如くして冷蔵室用通路となし、冷凍室通路と区
画し、残りのプロペラファン1の周囲を冷凍室用通路と
したことを特徴とする分流構造。 2、後方ダクトが渦巻状部を有する特許請求の範囲第1
項記載の冷蔵庫。
[Scope of Claims] 1. In a household refrigerator that uses a propeller fan to distribute cold air into a refrigerator compartment 6 and a freezer compartment 4, a diversion duct 5 close to the propeller fan is formed on the outlet side of the mouth ring plate. The cross-sectional area of the branch duct 5 increases in the flow direction to form a refrigerator compartment passage and a freezer compartment passage, and the area around the remaining propeller fan 1 is used as a freezer compartment passage. Divided structure. 2. Claim 1 in which the rear duct has a spiral portion
Refrigerator as described in section.
JP17830584A 1984-08-29 1984-08-29 Refrigerator Pending JPS6159173A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17830584A JPS6159173A (en) 1984-08-29 1984-08-29 Refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17830584A JPS6159173A (en) 1984-08-29 1984-08-29 Refrigerator

Publications (1)

Publication Number Publication Date
JPS6159173A true JPS6159173A (en) 1986-03-26

Family

ID=16046147

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17830584A Pending JPS6159173A (en) 1984-08-29 1984-08-29 Refrigerator

Country Status (1)

Country Link
JP (1) JPS6159173A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02242065A (en) * 1989-03-14 1990-09-26 Sharp Corp Blower for refrigerator
US5230562A (en) * 1989-11-02 1993-07-27 Sumitomo Heavy Industries, Ltd. Viscous liquid processor
US5816697A (en) * 1995-12-05 1998-10-06 Teijin Limited Viscous liquid stirring device and a process for producing polycarbonate by using the stirring device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02242065A (en) * 1989-03-14 1990-09-26 Sharp Corp Blower for refrigerator
US5230562A (en) * 1989-11-02 1993-07-27 Sumitomo Heavy Industries, Ltd. Viscous liquid processor
US5816697A (en) * 1995-12-05 1998-10-06 Teijin Limited Viscous liquid stirring device and a process for producing polycarbonate by using the stirring device

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